Henry d



(No Model.)

H. D. GARRYL.

DROP BOTTOM GAR.

Patented May 14, 1895.

INVENTOH WITNESSES:

Arromvr s.

m: ucmms vzrzns o0. Puni'o-umo" WASHINGTON, 0. c.

NITYED TATES HENRY D. (DARRYL, OF NEW YORK, N. Y.

DROP-BOTTOM CAR.

SPECIFICATION forming part of Letters Fatent No. 539,349, dated. May 14, 1895.

Application filed May 16, 1894- .Serial No. 511,426. (No model.)

To all whom it may concern.-

Be it known that I, HENRY D. CARRYL, of,

New York, have invented new and useful Im-T provements in Drop-Bottom Cars, of which the following is a full, clear, and exact description. I 7

The object of the invention is to provide certain new and useful improvements in drop bottom cars, whereby the hinged bottoms can -be readily and conveniently manipulated for wholly or partly and positively opening orclosing the bottoms, and for securely holding the same in any desired position.

The invention consistsprincipally of connecting rods or links adapted to be pivotally connected with the free ends of the hinged bottoms, and a movable head pivotally connected with the said rods or links.

The invention also consists in certain parts and details, and combinations of the same, as will be hereinafter fully described and then pointed out in the claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in all the views.

Figure 1 is a side elevation of the improvement. Fig. 2 is a transverse section of the same on the line 2 2 of Fig. 1, and Fig. 3 is an enlarged sectional plan view of part of the improvement on the line 3 3 of Fig. l. g

- The car A, is provided with the usual hopper bottom B, adapted to be opened and closed by the drop bottoms O and O, pivoted at C and C respectively on the said bottom, so

that the free ends of the drop bottoms are adjacent one to the other when in a closed position, as illustrated in Figs. 1 and 2. On the free ends of the said hinged drop bottoms O and O, are held the transversely-extending pivot pins D and D respectively, pivotally connected at their ends with sets of links or connecting rods E, E, respectively, extending upwardly on the sides of the car, as plainly illustrated in Figs. 1 and 2, the upper ends of each set of links E, E, being pivotally connected with a head F, formed with an interior screw thread screwing on a screw rod G, journaled in suitable bearings H, fastened to a plate I, secured to the corresponding side of the car A. The head F is fiatat its inner face and fits snugly against the front face of the plate I, to prevent the said head F from turning, and to cause the head to move up or down whenever the screw rod G is turned either to the right or to the left as the case may be.

On the lower ends of the two screw rods G on the sides of the car, are secured the bevel gear wheels J, in mesh with bevel gear wheels J secured on a transversely-extending shaft K, passing through the sides of the hopper bottom B, and journaled in suitable bearings L, attached to the bottom extensions I of the plate'I, as plainly shown in Fig. 2. The outer ends of the shaft K are both squared, as at K,

to permit of conveniently applying a crank arm, wrench or other suitable tool to turnthe said shaft K and cause the bevel gear wheels J to turn the bevel wheels J, and consequently the screw rods- G on which the said bevel wheels J are attached. 7

Whenthe several parts are in the position illustrated in Figs. 1 and 2, the drop bottoms O and G are closed, and the heads F are in an uppermost position on their screw rods G. Now, when the operator desires to partly or wholly open the doors 0 or 0, he then applies a crank arm, wrench, or other tool on either square end of the shaft K, to turn the latter in its bearings L, to cause the screw rods G to turn so as to move the heads F downward. The latter, by their downward movement, impart a downward swinging motion to the doors 0 O, by the sets of links E E, whereby the said doors swing positively open to any desired degree, either partly or wholly, as illustrated in dotted lines in Fig. 1. It will be seen that as soon as the operator ceases toturn the shaft K, the swinging motion of the doors GO ceases, and the said doors are held in the desired position by the connection of the links E E, with the heads F held on the vertically disposed screw rods G, near the closed doors 0 C. The operator turns the shaft K in anopposite direction so as to impart a turning motion to the screw rods G, to move the heads F upward so that the sets of links E E, pull the doors shut.

It will be seen that by the arrangement described, both doors 0 G, will move positively and'simultaneously into either a partly or wholly open position, and likewise move positively and simultaneously shut, and they are locked in eitherposition whenever the operator ceases to turn the shaft K.

It will further be seen that all overhead devices now employed in cars of this class, are entirely dispensed with, and the, carbottom doors having no interior'connections whatever, the material loaded in the car does not interfere in any manner with the operating devices for opening and closing the doors.

By the arrangement described, the doors are held positively shut at all four corners, to prevent the loss of contents of the car at these points, and in case the doors'become accidentally locked or jammed by ice or through other causes, then the doors are forced open as soon as the operator-turns the shaft K in, the manner above described. 1

Having thus described my invention, I claim as new andldesire tosecure by Letters; Patent- 1. In a drop bottom car the combination, with a hopper bottoimprovidedi withtdrop bottomshaving transverse'pivotsanld theirtfreel ends adjacent oneflto theotheriof connecting links pivotallyconnected at their -lower-en'ds withthefreeends of thelsaid bottoms and-at the underside thereof, heads pivotally: con-l nected withthenpper ends of the said links,

, described.

said bottom doors, substantially as described.

2. A device for manipulating the hinged bottom doors of cars, comprising sets of links pivotally connected with the free ends of the bottom doors, heads pivotally connected with the said links, screw rods engaging the threaded portions of the said heads, plates secured on the sides of the car and forminga guide for the said heads, topreventthe latter from turning, the said platesalso supporting the bear- -ingslfortheisaidscrew rods, bevel gearwheels onlthe s'aid screwirods, and a transverselyex' tendingshaft journaledin bearings attached 5 to the said plates and carrying bevel gear wheels in mesh withlthebovel gear wheels on the screwtrods, substantially as shown, and

HENRY D. CARRYL. Witnesses:

THEO. G; HOSTER,

Oi SEDGWICK. 

